Steaks
s,t,k,s = 4 x 50 = 200
e,a = 2 x 15 = 30
200 + 30 = 230
Answer: p = 0.56
Step-by-step explanation: from the question, probability she passed the first course = 0.7
Probability she passed the second course = 0.8
Probability she passes both courses means probability she passes the first course "and" probability she passes the second course.
Probability she pass both courses = 0.7 * 0.8 = 0.56
Note that "and" in probability means multiplication.
The distributive property is used to expand
B
<--|-----|-----|------|------|
-7 -6 -5
Answer:
A sample, or p hat, is representative when the sample closely remebles the population, which are the students in this case. The third and first answer choice would be correct.
Picking lunch period one is wrong because that would overrepresent the students in the first lunch period. Same applies to the first 30 students.
Pick
